205616132 has 12 divisors (see below), whose sum is σ = 359995356. Its totient is φ = 102760320.

The previous prime is 205616129. The next prime is 205616143. The reversal of 205616132 is 231616502.

It can be written as a sum of positive squares in 2 ways, for example, as 61999876 + 143616256 = 7874^2 + 11984^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1169 + ... + 20312.

It is an arithmetic number, because the mean of its divisors is an integer number (29999613).

Almost surely, 2^205616132 is an apocalyptic number.

It is an amenable number.

205616132 is a deficient number, since it is larger than the sum of its proper divisors (154379224).

205616132 is a wasteful number, since it uses less digits than its factorization.

205616132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23878 (or 23876 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 205616132 is about 14339.3211833755. The cubic root of 205616132 is about 590.2269853431.

The spelling of 205616132 in words is "two hundred five million, six hundred sixteen thousand, one hundred thirty-two".